Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
Only humans shed emotional tears.
331
The human brain doesn't stop developing until about 25 years old.
102
The human brain is more active during sleep than during the day.
28
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21